Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4870320 | Color picture tube having an electron gun with reduced convergence drift | Stephen T. Opresko, Loren L. Maninger | 1989-09-26 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4870320 | Color picture tube having an electron gun with reduced convergence drift | Stephen T. Opresko, Loren L. Maninger | 1989-09-26 |